diff -up linux-4.18.0-372.26.1.el8.x86_64/fs/pipe.c,kbz216458 linux-4.18.0-372.26.1.el8.x86_64/fs/pipe.c
--- linux-4.18.0-372.26.1.el8.x86_64/fs/pipe.c,kbz216458	2022-08-26 19:31:40.000000000 +0100
+++ linux-4.18.0-372.26.1.el8.x86_64/fs/pipe.c	2022-10-03 22:49:12.525329538 +0100
@@ -307,7 +307,9 @@ pipe_read(struct kiocb *iocb, struct iov
 		if (bufs)	/* More to do? */
 			continue;
 		if (!pipe->writers)
+		{       do_wakeup = 1;
 			break;
+		}
 		if (!pipe->waiting_writers) {
 			/* syscall merging: Usually we must not sleep
 			 * if O_NONBLOCK is set, or if we got some data.
@@ -328,17 +330,23 @@ pipe_read(struct kiocb *iocb, struct iov
 		}
 		if (do_wakeup) {
 			wake_up_interruptible_sync_poll(&pipe->wait, EPOLLOUT | EPOLLWRNORM);
- 			kill_fasync(&pipe->fasync_writers, SIGIO, POLL_OUT);
+			if ( pipe->fasync_writers )
+				kill_fasync(&pipe->fasync_writers, SIGIO, ( ret > 0 ) ? POLL_OUT : ((!pipe->readers) ? POLL_HUP : POLL_OUT));
 		}
 		pipe_wait(pipe);
 	}
 	__pipe_unlock(pipe);
 
-	/* Signal writers asynchronously that there is more room. */
-	if (do_wakeup) {
+	if ( (!pipe->writers) && pipe->fasync_readers )
+	       	kill_fasync(&pipe->fasync_readers, SIGIO, POLL_HUP);
+
+	if ( do_wakeup ) {
+		/* Signal writers asynchronously that there is more room. */
 		wake_up_interruptible_sync_poll(&pipe->wait, EPOLLOUT | EPOLLWRNORM);
-		kill_fasync(&pipe->fasync_writers, SIGIO, POLL_OUT);
+		if ( pipe->fasync_writers )
+			kill_fasync(&pipe->fasync_writers, SIGIO, (ret > 0) ? POLL_OUT  : ((!pipe->readers) ? POLL_HUP : POLL_OUT));
 	}
+
 	if (ret > 0)
 		file_accessed(filp);
 	return ret;
@@ -464,7 +472,8 @@ pipe_write(struct kiocb *iocb, struct io
 		}
 		if (do_wakeup) {
 			wake_up_interruptible_sync_poll(&pipe->wait, EPOLLIN | EPOLLRDNORM);
-			kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
+			if ( pipe->fasync_readers )
+				kill_fasync(&pipe->fasync_readers, SIGIO, (ret > 0) ? POLL_IN : ((!pipe->writers) ? POLL_HUP : POLL_IN));
 			do_wakeup = 0;
 		}
 		pipe->waiting_writers++;
@@ -473,11 +482,14 @@ pipe_write(struct kiocb *iocb, struct io
 	}
 out:
 	__pipe_unlock(pipe);
+
 	if (do_wakeup) {
 		wake_up_interruptible_sync_poll(&pipe->wait, EPOLLIN | EPOLLRDNORM);
-		kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
+		if ( pipe->fasync_readers )
+			kill_fasync(&pipe->fasync_readers, SIGIO, (ret > 0) ? POLL_IN : ((!pipe->writers) ? POLL_HUP : POLL_IN));
 	}
-	if (ret > 0 && sb_start_write_trylock(file_inode(filp)->i_sb)) {
+
+	if ((ret > 0) && sb_start_write_trylock(file_inode(filp)->i_sb)) {
 		int err = file_update_time(filp);
 		if (err)
 			ret = err;
@@ -569,9 +581,16 @@ pipe_release(struct inode *inode, struct
 
 	if (pipe->readers || pipe->writers) {
 		wake_up_interruptible_sync_poll(&pipe->wait, EPOLLIN | EPOLLOUT | EPOLLRDNORM | EPOLLWRNORM | EPOLLERR | EPOLLHUP);
-		kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
-		kill_fasync(&pipe->fasync_writers, SIGIO, POLL_OUT);
+		if ( pipe->fasync_readers && !pipe->writers )
+			kill_fasync(&pipe->fasync_readers, SIGIO, POLL_HUP);
+		else if (pipe->fasync_readers)
+			kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
+		if ( pipe->fasync_writers && !pipe->readers )
+			kill_fasync(&pipe->fasync_writers, SIGIO, POLL_HUP);
+		else if (pipe->fasync_writers)
+			kill_fasync(&pipe->fasync_writers, SIGIO, POLL_OUT);
 	}
+
 	__pipe_unlock(pipe);
 
 	put_pipe_info(inode, pipe);